No problem, I really like using the stuff. I bought a few of the other sheets, offset rectangle and staggered rectangle paving styles to base my mini's and the results look really good. Great for a nice urban setting (Maybe not the grim darkness of the far future). The cobblestone is much thicker than the paving stones. The paving sheets are flexible 0.5mm plasticard while the cobblestone is much thicker 1mm or possibly 1.5mm and not flexible at all. I've based mini's on both and really like the results.
Offset rectangle paving stones. I cut out a few individual bricks from the paving to give it a smashed look underneath the 'Jacks feet. Also put just a touch of red wash over the blood stains so it would get into the gaps between the stones.
The bases on both of these are just painted grey and then washed with black. I think its a good look for minimal effort. No doubt you could do a lot more if you were inclined to do so. The paving stones would lend themselves to a mosaic style fairly easily.